package xyz.scootaloo.draft.demo;

/**
 * @author flutterdash@qq.com
 * @since 2021/5/8 8:36
 */
public class InterfaceCase {

    interface A {
        int b();
    }

    class B implements A {

        @Override
        public int b() {
            return 0;
        }

    }

    class C {
        private int a = 2;
    }

    class D extends C {
        public void test() {
        }
    }

}
